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| www..com Intelligent Analog IA171 Low voltage video driver Features Low voltage operation 2.8V~5.5V Low stand-by current (<1uA) at power save Transparent internal clamp AC or DC-coupled output Built-in high performance 4 stages Low Pass Filter (-40dB at 27MHz) Dual video load drive (75 ohm x 2) SAG correction reduce output capacitance RoHS compliant Pb-free SOT-26 package Applications DVD player Security camera Set-top box Portable media player Communication device Digital still camera Block Diagram VCC 6 VIN 4 L.P.F. + 2 VOUT - CLAMP 3 SAG 1 PS 5 GND www..com Description IA171 is a high performance, low voltage, and low power consumption video driver with a built-in low pass filter. The internal transparent clamp circuit can restore composite video signal to fixed DC level. IA 171 incorporates a high performance 4 stages Low Pass Filter that is ideal for removing DAC sampling noise. Only small ceramic capacitor (0.1uF typical) is required for AC-coupled input. The output can be configured as AC or DC-coupled output. With AC-coupled, sag correction can reduce output coupling capacitance. With DC-coupled, it can eliminate large output coupling capacitors and save board space. It's low voltage and low power consumption is suitable for portable device. Ultra-low current consumption during power save to under 1uA. IA 171 can also be configured as bias inputs video driver when bias video signals are needed. Absolute Maximum Rating Supply Voltage Continuous Output Current (One Channel) Power Dissipation Operating Temperature Storage Temperature 10V 45mA 200mW -40~+85 -65~+125 Electrical Specifications VCC=+3.0V, Ta=25, RL=150 ohm, CL=0.1uF DESCRIPTION ISB VOL VCLAMP GV IPS VPSH VPSL BW1 BW2 dG dP PARAMETER Standby Current at VCC=+3.0V Output Level Shift Voltage Input Clamp Voltage Voltage Gain Power Save Current Power Save High voltage Power Save Low voltage +/- 1dB Bandwidth, RL=150 ohm, CL=5pF Frequency Response at 27MHz Differential Gain Differential Phase 6.75 -40 0.5 0.5 -27 1.0 1.0 2.0 0.5 1.1 5.7 MIN TYP MAX UNIT 6 300 1.25 6.0 0.1 10 450 1.40 6.3 1 mA mV V dB uA V V MHZ dB AC PERFORMANCE www..com dG DC dP DC +SR -SR SNR DR Td1 Td2 Differential Gain DC-coupled Differential Phase DC-coupled Positive Slew Rate, V in =1V step Negative Slew Rate, V in =1V step Signal to Noise Ratio Output Dynamic Range Group Delay at 100KHz To 3.58MHz To 4.43MHz To 6MHz 2.2 20 15 0.2 0.2 40 30 +70 2.4 50 4 6 12 0.5 0.5 60 45 V/uS V/uS dB V 80 10 10 18 nS nS nS nS Pin Description Pin No. 1 2 3 4 5 6 Pin Type Input Output Input Input Pin Function Power save input Video output Sag correction input Video signal input GND VCC Power Save Control Pin Function Power Save H L OPEN OFF ON ON Typical Applications Application 1: Composite video input at VCC=2.8V~5.5V, with input and output capacitors and driving two 75 ohm loads www..com VCC VIDEO IN 75 47uF 0.1uF 0.1uF 6 5 4 IA171 VCC 1 2 3 100uF 75 22uF 75 VIDEO OUT1 VIDEO OUT2 Application 2: Composite video input at VCC=2.8V~5.5V, with input and output capacitors and driving one 75 ohm load VCC VIDEO IN 75 47uF 0.1uF 0.1uF 6 5 4 IA171 VCC 1 2 3 47uF 75 22uF VIDEO OUT Application 3: With input capacitor but without output capacitors at VCC= 2.8V~3.3V and driving one 75 ohm load www..com VCC VIDEO IN 75 47uF 0.1uF 0.1uF 6 5 4 IA171 VCC 1 2 3 75 VIDEO OUT Application 4: Bias video input at VCC=2.8V~5.5V, with input and output capacitors and driving two 75 ohm loads VCC VCC VIDEO IN 75 47uF 0.1uF 6 5 4 100K 68K 0.1uF IA171 VCC 1 2 3 100uF 75 22uF 75 VIDEO OUT1 VIDEO OUT2 Compatible device The IA171 is compatible with other brand video drivers www..com Company Device name JRC NJM2561, NJM2575 Mitsumi MM1671 Intelligent Analog IA171 Performance Curve www..com Supply Current vs Supply voltage Power Save Supply Current Input Voltage vs Supply Voltage Output Voltage vs Supply Voltage Output Dynamic Range S/N vs Supply Voltage www..com Voltage Gain vs Supply Voltage 6.75M~100K Frequency vs Supply Voltage Supply Current vs Temperature Power Save Current vs Temperature Input Voltage vs Temperature Output Voltage vs Temperature |
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